Activity surface



FIG. 1 is a front, left perspective view of an activity surface showing our new design.

FIG. 2 is a top, rear perspective view thereof.

FIG. 3 is a bottom view thereof.

FIG. 4 is a top view thereof.

FIG. 5 is a front view thereof.

FIG. 6 is a rear view thereof.

FIG. 7 is a left side view thereof.

FIG. 8 is a right side view thereof.

FIG. 9 is a front, right perspective view of the activity surface shown in condition of use; and,

FIG. 10 is another front, right perspective view of the activity surface thereof.

The broken lines in the drawings depict environmental structures that form no part of the claimed design. 

CLAIM The ornamental design for an activity surface, as shown and described. 